One=Two Battery features sole form to permit two batteries to purpose as one when their power levels are running down. The cause why one=two battery is a superior concept because batteries are damaging to our surroundings. Do you recognize that 1 cubic meter of earth can be impure by only a single D-size battery? Battery contains poisonous fabric; nevertheless it seems that it’s been a customary do for users with powered-battery devices to replace a low-energy battery with a latest one in an immediate while really there’s still a lot of power stored in the old one. This unique plan allows the battery to be dense when running low down and combined into one for better power level. In this method, the natural life of a battery can be extended. One=Two Battery Concept design designed by Huang Kun, Meng Xun, He Ting and Liu Yuan. Have a Look!